How to hack LEDs into Lego minifigures
http://www.evilmadscientist.com/article.php/LEDMinifigs
So worth while for SOOOOOOO many reasons! Better than that would be push celophane inside the head and THEN shove a LED in there. Apart from the whole heat from the LED potentially melting the celophane …
Yeah, nice, I like it heh.